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Browsing Science, Mathematics, & Computing by Title

Now showing items 1-20 of 20

Analytic torsion and Faddeev-Popov ghosts

McIntyre, Andrew (2002)

The regularized determinant of the Laplacian on n-differentials on a hyperbolic Riemann surface is studied. The main result is an intrinsic characterization of the connection form for the determinant line bundle, endowed ...
Can Sea Urchins Beat the Heat? Sea Urchins, Thermal Tolerance and Climate Change

Sherman, Elizabeth (PeerJ, 2015-06-09)

The massive die-off of the long-spined sea urchin, Diadema antillarum, a significant reef grazer, in the mid 1980s was followed by phase shifts from coral dominated to macroalgae dominated reefs in the Caribbean.While ...
Dense Cloud Ablation and Ram Pressure Stripping of the Virgo Spiral NGC 4402

Crowl, Hugh H.; Kenney, Jeffrey D. P.; van Gorkom, J. H.; Vollmer, Bernd (The American Astronomical Society, 2005-07)

We present optical, H i, and radio continuum observations of the highly inclined Virgo Cluster Sc galaxy NGC 4402, which show evidence for ram pressure stripping and dense cloud ablation. Very Large Array H i and radio ...
Diverse Cellular Functions of the Hsp90 Molecular Chaperone Uncovered Using Systems Approaches

McClellan, Amie J.; Xia, Yu; Deutschbauer, Adam M.; Davis, Ron W.; Gerstein, Mark; Frydman, Judith (Elsevier, 2007-10)

A comprehensive understanding of the cellular functions of the Hsp90 molecular chaperone has remained elusive. Although Hsp90 is essential, highly abundant under normal conditions, and further induced by environmental ...
Fluid circulation and carbonate vein precipitation in the footwall of an oceanic core complex, Ocean Drilling Program Site 175, Mid-Atlantic Ridge

Schroeder, Timothy; Bach, Wolfgang; Jöns, Niels; Jöns, Svenja; Monien, Patrick; Klügel, Andreas (Wiley American Geophysical Union, 2015-10)

Carbonate veins recovered from the mafic/ultramafic footwall of an oceanic detachment fault on the Mid-Atlantic Ridge record multiple episodes of fluid movement through the detachment and secondary faults. High-temperature ...
Folding and Quality Control of the VHL Tumor Suppressor Proceed through Distinct Chaperone Pathways

McClellan, Amie J.; Scott, Melissa D.; Frydman, Judith (Elsevier, 2005-06)

The mechanisms by which molecular chaperones assist quality control of cytosolic proteins are poorly understood. Analysis of the chaperone requirements for degradation of misfolded variants of a cytosolic protein, the VHL ...
Heterozygous Yeast Deletion Collection Screens Reveal Essential Targets of Hsp90

Franzosa, Eric A.; Albanèse, Véronique; Frydman, Judith; Xia, Yu; McClellan, Amie J. (Public Library of Science, 2011-11)

Hsp90 is an essential eukaryotic chaperone with a role in folding specific ‘‘client’’ proteins such as kinases and hormone receptors. Previously performed homozygous diploid yeast deletion collection screens uncovered broad ...
Holomorphic factorization of determinants of Laplacians on Riemann surfaces and a higher genus generalization of Kronecker’s first limit formula

McIntyre, Andrew; Takhtajan, Leon A. (Springer Verlag, 2006-09)

For a family of compact Riemann surfaces X_t of genus g>1 parametrized by the Schottky space S_g, we define a natural basis for the holomorphic n-differentials on X_t which varies holomorphically with t and generalizes the ...
Holomorphic factorization of determinants of Laplacians using quasi-Fuchsian uniformization

McIntyre, Andrew; Teo, Lee-Peng (Springer Verlag, 2006)

For a quasi-Fuchsian group Γ with ordinary set Ω, and Δ_n the Laplacian on n-differentials on Γ\Ω, we define a notion of a Bers dual basis ϕ_1,…,ϕ_2_d for ker Δ_n. We prove that det Δ_n/det⟨ϕ_j,ϕ_k⟩, is, up to an anomaly ...
The Line-of-Sight Depth of Populous Clusters in the Small Magellanic Cloud

Crowl, Hugh H.; Sarajedini, Ata; Piatti, Andrés E.; Geisler, Doug; Bica, Eduardo; Clariá, Juan J.; João, F. C. Santos, Jr. (The American Astronomical Society, 2001-07)

We present an analysis of age, metal abundance, and positional data on populous clusters in the Small Magellanic Cloud (SMC) with the ultimate aim of determining the line-of-sight (LOS) depth of the SMC by using these ...
Nonvolcanic seafloor spreading and corner-flow rotation accommodated by extensional faulting at 15 °N on the Mid- Atlantic Ridge: A structural synthesis of ODP Leg 209

Schroeder, Timothy; Cheadle, Michael J.; Dick, Henry J. B.; Faul, Ulrich; Casey, John F.; Kelemen, Peter B. (Wiley American Geophysical Union, 2007-06)

Abstract: Drilling during ODP Leg 209, dredging, and submersible dives have delineated an anomalous stretch of the Mid-Atlantic Ridge north and south of the 15°20'N Fracture Zone. The seafloor here consists dominantly of ...
Protein Quality Control: Chaperones Culling Corrupt Conformations

McClellan, Amie J.; Tam, Stephen; Kaganovich, Daniel; Frydman, Judith (Nature Publishing Group, 2005-08)

Achieving the correct balance between folding and degradation of misfolded proteins is critical for cell viability. The importance of defining the mechanisms and factors that mediate cytoplasmic quality control is underscored ...
Quality Control of Protein Folding in the Cytosol

McClellan, Amie J. (Wilvey, 2012-05)

In order to function properly, newly synthesised proteins must rapidly and efficiently attain their native conformations. If they fail to do so, the cell may be adversely affected due to loss of function or toxic gain ...
A Spectacular Hα Complex in Virgo: Evidence for a Collision between M86 and NGC 4438 and Implications for the Collisional ISM Heating of Ellipticals

Kenney, Jeffrey D. P.; Tal, Tomer; Crowl, Hugh H.; Feldmeier, John; Jacoby, George H. (The American Astronomical Society, 2008-10)

Deep wide-field Hα+[N II] imaging around the Virgo Cluster giant elliptical galaxy M86 reveals a highly complex and disturbed ISM/ICM. The most striking feature is a set of Hα filaments which clearly connect M86 with the ...
The Stellar Population of Stripped Cluster Spiral NGC 4522: A Local Analog to K+A Galaxies?

Crowl, Hugh H.; Kenney, Jeffrey D. P. (The American Astronomical Society, 2006-10)

We present observations of the stripped Virgo Cluster spiral galaxy NGC 4522, a clear, nearby example of a galaxy currently undergoing interstellar medium-intracluster medium (ISM-ICM) stripping. Utilizing SparsePak integral ...
The Stellar Populations of Stripped Spiral Galaxies in the Virgo Cluster

Crowl, Hugh H.; Kenney, Jeffrey D. P. (The American Astronomical Society, 2008-10)

We present an analysis of the stellar populations of the gas-stripped outer disks of ten Virgo cluster spiral galaxies, utilizing SparsePak integral field spectroscopy on the WIYN 3.5 m telescope and Galaxy Evolution ...
Strain localization on an oceanic detachment fault system, Atlantis Massif, 30 °N, Mid-Atlantic Ridge

Schroeder, Timothy; John, Barbara E. (Wiley American Geophysical Union, 2004-11)

Abstract: Microstructural observations, mineral chemistry, and the spatial distribution of deformation fabrics recorded in outcrop samples collected from Atlantis Massif, the active inside corner high at 30 °N, Mid- Atlantic ...
Tau function and Chern–Simons invariant

McIntyre, Andrew; Park, Jinsung (Elsevier, 2014)

We define a Chern-Simons invariant for a certain class of infinite volume hyperbolic 3-manifolds. We then prove an expression relating the Bergman tau function on a cover of the Hurwitz space, to the lifting of the function ...
Transformation of a Virgo Cluster Dwarf Irregular Galaxy by Ram Pressure Stripping: IC3418 and its Fireballs

Kenney, Jeffrey D. P.; Geha, Marla; Jachym, Pavel; Crowl, Hugh H.; Dague, William; Chung, Aeree; van Gorkom, Jacqueline; Vollmer, Bernd (The American Astronomical Society, 2014-01-10)

We present optical imaging and spectroscopy and H I imaging of the Virgo Cluster galaxy IC 3418, which is likely a "smoking gun" example of the transformation of a dwarf irregular into a dwarf elliptical galaxy by ram ...
VLA Imaging of Virgo Spirals in Atomic Gas (VIVA).

Chung, Aeree; Gorkom, J. H.; Kenney, Jeffrey D. P.; Crowl, Hugh H.; Vollmer, Bernd (The American Astronomical Society, 2009-12)

We present the results of a new VLA H I Imaging survey of Virgo galaxies, the VLA Imaging survey of Virgo galaxies in Atomic gas (VIVA). The survey includes high-resolution H I data of 53 carefully selected late type ...

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